Page 1
Ordering number:EN1057B
PNP/NPN Epitaxial Planar Silicon Transistors
2SA1257/2SC3143
High-Voltage Switching, AF Power Amp,
100W Output Predriver Applications
Features
· Very small-sized package permitting the 2SA1257/
2SC3143-applied sets to be made small and slim.
· High breakdown voltage (V
CEO
≥160V).
· Small output capacitance.
Switching Time T est Circuit
IC=10IB1=–10IB2=10mA
( ) : 2SA1257
(For PNP, the polarity is reversed)
Unit (resistance : Ω, capacitance : F)
Specifications
Absolute Maximum Ratings at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatloVesaB-ot-rotcelloCV
egatloVrettimE-ot-rotcelloCV
egatloVesaB-ot-rettimEV
tnerruCrotcelloCI
esluPtnerruCrotcelloCI
noitapissiDrotcelloCP
erutarepmeTnoitcnuJjT 521
erutarepmeTegarotSgtsT 521+ot55–
OBC
OEC
OBE
C
PC
C
Package Dimensions
unit:mm
2018A
[2SA1257/2SC3143]
C : Collector
B : Base
E : Emitter
SANYO : CP
081)–(V
061)–(V
5)–(V
08)–(Am
051)–(Am
002Wm
˚C
˚C
Electrical Characteristics at Ta = 25˚C
retemaraPlobmySsnoitidnoC
tnerruCffotuCrotcelloCI
tnerruCffotuCrettimEI
niaGtnerruCCDh
tcudorPhtdiwdnaB-niaGf
ecnaticapaCtuptuOboCV
egatloVrettimE-ot-esaBV
egatloVnoitarutaSrettimE-ot-rotcelloCV
egatloVnwodkaerBesaB-ot-rotcelloCV
egatloVnwodkaerBrettimE-ot-rotcelloCV
egatloVnwodkaerBesaB-ot-rettimEV
emiTNO-nruTt
emiTegarotSt
emiTllaFt
V
OBC
OBE
EF
T
EB
no
gts
f
BC
V
BE
V
EC
V
EC
BC
V
EC
I
C
)tas(EC
I
OBC)RB(
C
I
OEC)RB(
C
I
OBE)RB(
E
I,V021)–(=
0=1.0)–(Aµ
E
I,V4)–(=
0=1.0)–(Aµ
C
I,V5)–(=
C
I,V5)–(=
C
I,Am03)–(=
I,Aµ01)–(=
E
R,Am1)–(=
I,Aµ01)–(=
C
Am01)–(=*06*072
I,V01)–(=
C
B
Am01)–(=)031(
zHM1=f,V01)–(=)4.2(
Am01)–(=5.1)–(V
Am3)–(=
0=081)–(V
=∞ 061)–(V
EB
0=5)–(V
tiucriCtseTdeificepseeS)51.0(
tiucriCtseTdeificepseeS)59.0(
tiucriCtseTdeificepseeS)51.0(
* : The 2SA1257/2SC3143 are classified by 10mA hFE as follows :
0213G060814G090725G531
Marking 2SA1257 : G, 2SC3143 : K, hFE rank : 3, 4, 5
nimpytxam
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
71598HA (KT)/7148MO/3187AT/D103KI, MT No.1057-1/4
sgnitaR
051
0.2
81.0
00.1
02.0
tinU
zHM
)2.3(
Fp
8.2
7.0)–(V
sµ
sµ
sµ
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2SA1257/2SC3143
No.1057-2/4
Page 3
2SA1257/2SC3143
No.1057-3/4
Page 4
2SA1257/2SC3143
No products described or contained herein are intended for use in surgical implants, life-support systems,
aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and
the like, the failure of which may directly or indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates,
subsidiaries and distributors and all their officers and employees, jointly and severally, against any
and all claims and litigation and all damages, cost and expenses associated with such use:
Not impose any responsibilty for any fault or negligence which may be cited in any such claim or
litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of
their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees
are made or implied regarding its use or any infringements of intellectual property rights or other rights of
third parties.
This catalog provides information as of July, 1998. Specifications and information herein are subject to
change without notice.
PS No.1057-4/4
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